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Annotation of sys/arch/sh/include/vmparam.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: vmparam.h,v 1.3 2007/05/20 20:16:08 miod Exp $        */
                      2: /*     $NetBSD: vmparam.h,v 1.17 2006/03/04 01:55:03 uwe Exp $ */
                      3:
                      4: /*-
                      5:  * Copyright (c) 2002 The NetBSD Foundation, Inc.
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to The NetBSD Foundation
                      9:  * by UCHIYAMA Yasushi.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
                     19:  * 3. All advertising materials mentioning features or use of this software
                     20:  *    must display the following acknowledgement:
                     21:  *        This product includes software developed by the NetBSD
                     22:  *        Foundation, Inc. and its contributors.
                     23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     24:  *    contributors may be used to endorse or promote products derived
                     25:  *    from this software without specific prior written permission.
                     26:  *
                     27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     37:  * POSSIBILITY OF SUCH DAMAGE.
                     38:  */
                     39:
                     40: #ifndef _SH_VMPARAM_H_
                     41: #define        _SH_VMPARAM_H_
                     42: #include <sys/queue.h>
                     43:
                     44: /* Virtual address map. */
                     45: #define        VM_MIN_ADDRESS          ((vaddr_t)0)
                     46: #define        VM_MAXUSER_ADDRESS      ((vaddr_t)0x7ffff000)
                     47: #define        VM_MAX_ADDRESS          ((vaddr_t)0x7ffff000)
                     48: #define        VM_MIN_KERNEL_ADDRESS   ((vaddr_t)0xc0000000)
                     49: #define        VM_MAX_KERNEL_ADDRESS   ((vaddr_t)0xe0000000)
                     50:
                     51: /* top of stack */
                     52: #define        USRSTACK                VM_MAXUSER_ADDRESS
                     53:
                     54: /* Virtual memory resoruce limit. */
                     55: #define        MAXTSIZ                 (64 * 1024 * 1024)      /* max text size */
                     56: #ifndef MAXDSIZ
                     57: #define        MAXDSIZ                 (512 * 1024 * 1024)     /* max data size */
                     58: #endif
                     59: #ifndef        MAXSSIZ
                     60: #define        MAXSSIZ                 (32 * 1024 * 1024)      /* max stack size */
                     61: #endif
                     62:
                     63: /* initial data size limit */
                     64: #ifndef DFLDSIZ
                     65: #define        DFLDSIZ                 (128 * 1024 * 1024)
                     66: #endif
                     67: /* initial stack size limit */
                     68: #ifndef        DFLSSIZ
                     69: #define        DFLSSIZ                 (2 * 1024 * 1024)
                     70: #endif
                     71:
                     72: #define        STACKGAP_RANDOM         (256 * 1024)
                     73:
                     74: /*
                     75:  * Size of shared memory map
                     76:  */
                     77: #ifndef SHMMAXPGS
                     78: #define        SHMMAXPGS               1024
                     79: #endif
                     80:
                     81: /* Size of user raw I/O map */
                     82: #ifndef USRIOSIZE
                     83: #define        USRIOSIZE               (MAXBSIZE / PAGE_SIZE * 8)
                     84: #endif
                     85:
                     86: #define        VM_PHYS_SIZE            (USRIOSIZE * PAGE_SIZE)
                     87:
                     88: /* pmap-specific data store in the vm_page structure. */
                     89: #define        __HAVE_VM_PAGE_MD
                     90: #define        PVH_REFERENCED          1
                     91: #define        PVH_MODIFIED            2
                     92:
                     93: #ifndef _LOCORE
                     94: struct pv_entry;
                     95: struct vm_page_md {
                     96:        SLIST_HEAD(, pv_entry) pvh_head;
                     97:        int pvh_flags;
                     98: };
                     99:
                    100: #define        VM_MDPAGE_INIT(pg)                                              \
                    101: do {                                                                   \
                    102:        struct vm_page_md *pvh = &(pg)->mdpage;                         \
                    103:        SLIST_INIT(&pvh->pvh_head);                                     \
                    104:        pvh->pvh_flags = 0;                                             \
                    105: } while (/*CONSTCOND*/0)
                    106: #endif /* _LOCORE */
                    107: #endif /* !_SH_VMPARAM_H_ */